RE: Core One MMU3 Prototypes
Hey everybody!
As I see some questions, I want to join the discussion to give some insight😀
I now have incorporated a rewinding option, so you don't need a buffer in the first place, also, this makes loading soo much easier, and it can be done from the front.
As for the panel, you indeed need to go thru the top panel, but, there is a dxf file includes, where you can make a new one with the slot already in place. If you order the kit it already comes with this panel.
Regarding the venting;
There is quite a big space between the top of CORE one and the bottom of COREBOXX.
Since the sides also sit raised, and the surface area of these open sides is 3-4 times as large as the top vent itself, I did not find any issues with heat creep or high chambers temps when I don't want it.
This looks so cool! Your rewinding video shows all full spools. Can you add a video that also shows rewinding of nearly empty spools? That is where most rewinder attempts struggle and fail.
MK4S/MMU3
RE: Core One MMU3 Prototypes
I don't know how system is using.
But if it's filamentalist based the problem it's inverted, filamentalist only have struggle with +2kg spools, no problem with 1kg or almost empty spools.
Hey everybody!
As I see some questions, I want to join the discussion to give some insight😀
I now have incorporated a rewinding option, so you don't need a buffer in the first place, also, this makes loading soo much easier, and it can be done from the front.
As for the panel, you indeed need to go thru the top panel, but, there is a dxf file includes, where you can make a new one with the slot already in place. If you order the kit it already comes with this panel.
Regarding the venting;
There is quite a big space between the top of CORE one and the bottom of COREBOXX.
Since the sides also sit raised, and the surface area of these open sides is 3-4 times as large as the top vent itself, I did not find any issues with heat creep or high chambers temps when I don't want it.
This looks so cool! Your rewinding video shows all full spools. Can you add a video that also shows rewinding of nearly empty spools? That is where most rewinder attempts struggle and fail.
RE: Core One MMU3 Prototypes
Correct!
I chose to go front he Filamentalist, specifically because it works so well with empty and full spools.
When they have a bigger weight range (for example the 2KG Spools, like Jon said) they struggle. But these don't fit inside coreboxx anyways so I did not see that as a limitation.
RE: Core One MMU3 Prototypes
Currently considering this : https://www.printables.com/model/1289230-mmu-box-upgrade-your-prusa-mmu3-user-experience-en
RE: Core One MMU3 Prototypes
Currently considering this : https://www.printables.com/model/1289230-mmu-box-upgrade-your-prusa-mmu3-user-experience-en
Wow, nice but then I realised that that is only a 5 spool auto-rewinder box that replaces the buffer.
It requires to connect the MMU3 (I can't see where in the picture). It requires at least 5 Kg of filament (too much for me) to be printed, plus some other minor parts.
RE: Core One MMU3 Prototypes
That has a lot of promise. If you build, please let us know how it goes.
Currently considering this : https://www.printables.com/model/1289230-mmu-box-upgrade-your-prusa-mmu3-user-experience-en
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Chuck H
3D Printer Review Blog
RE:
My question is, will PrusaSlicer have CoreOne profiles for the MMU3 and for the NextGen MMU? My fear is that they’ll never fully support the MMU3, even though they promised it from the first day they announced the CoreOne. My purchase was based on MMU3 compatibility. Maybe they’ll offer an MMU3>NextGen upgrade? Not interested, but I would be interested in credit toward the NextGen.
MK4S/MMU3
RE: Core One MMU3 Prototypes
Im pretty sure they will. They are already showing various designs with the MMU3 and the Core One - I highly doubt they will drop MMU3 support when the 'new solution' comes along. My thinking is that the new solution will still be based on the same principles of the MMU3, so will work the same way and hence use the same firmware etc, but will simply have a slightly different hardware design so that its more compact and fits into the Core One better, or into the external filament storage solution in a more streamlines manor. That doesn't have to mean it works completely different or needs a whole new firmware etc - just a redesigned hardware footprint that still ultimately works the same way as the MMU3, which I'd be fine with considering the proven reliability of the MMU3......
My question is, will PrusaSlicer have CoreOne profiles for the MMU3 and for the NextGen MMU? My fear is that they’ll never fully support the MMU3, even though they promised it from the first day they announced the CoreOne. My purchase was based on MMU3 compatibility. Maybe they’ll offer an MMU3>NextGen upgrade? Not interested, but I would be interested in credit toward the NextGen.
RE: Core One MMU3 Prototypes
You clearly did not watch the video. As all your questions are answered in it.
My question is, will PrusaSlicer have CoreOne profiles for the MMU3 and for the NextGen MMU? My fear is that they’ll never fully support the MMU3, even though they promised it from the first day they announced the CoreOne. My purchase was based on MMU3 compatibility. Maybe they’ll offer an MMU3>NextGen upgrade? Not interested, but I would be interested in credit toward the NextGen.
RE: Core One MMU3 Prototypes
I'm going to wait and hope for a rewind system that's powered (presumably by a stepper motor). The auto-rewind systems I've either tried or considered haven't left me enthusiastic about the possibility of investing hours or days of print time for a device I don't have confidence in.
RE: Core One MMU3 Prototypes
Sure. I just don’t recall him mentioning PrusaSlicer.
You clearly did not watch the video. As all your questions are answered in it.
MK4S/MMU3
RE: Core One MMU3 Prototypes
Sure. I just don’t recall him mentioning PrusaSlicer.
You clearly did not watch the video. As all your questions are answered in it.
It seems pretty clear from the video that (a) the MMU3 will be fully supported for the Core One, since it will be Prusa's multi-material solution for the time being. That must include PrusaSlicer support, how else would you use the MMU3 in a meaningful way? And (b) there will not be an upgrade path from the MMU3 to the future design, since in Jo Prusa's words the "the upgradability will be broken from the MMU3 to the next-gen solution".
RE: Core One MMU3 Prototypes
The various designs which place five spools on top of the Core One (including Prusa's recent "community version") all look pretty awkward to me, because the rack of spools is wider than the printer itself.
Has anyone done a design with only four spools on top, plus an external feeder port? That should fit the width of the Core One nicely, and the external port could be used for oversized spools or particularly moisture-sensitive filament that needs to reside in a dry box. (Or not used at all, since four filaments will serve many applications nicely.)
RE: Core One MMU3 Prototypes
I dont really like the top mounted solutions as they generally mean the MMU unit itself is difficult to get to. It really needs to be a seriously reliable, fool-proof, next-gen MMU for me to consider it.
For example, just yesterday I was loading up my MMU3 with another 5 spools - filament 1 got stuck as I was trying to feed it in so I had to open the MMU3 unit to guide it through, after which it was fine. Filament 2-4 all went through without any issues. I don't want to faff about with getting to the back of a spool drybox solution to rectify this seemingly simple task - would take more time getting to the MMU then it would to fix the issue!
RE: Core One MMU3 Prototypes
Accessibility matters. My biggest challenge with the MMU3 on the Mk4S is getting to the MMU3 when there's a problem. Rarely do I have to access a spool, its usually the MMU3 unit or buffer. Additionally, none of these solutions include an active dehumidifier solution. I'm really loving my Sunlu S4 dryer, and I can recognize that it isn't rocket science. Why not integrate a dryer in one of these solutions?
Additionally, switching from MMU3 to single filament profiles is a pain when I want to run something that isn't PLA or PETG. Wouldn't it be great if Prusaslicer would support additional filaments through bypass instead of having to reconfigure the printer settings?
I'm happy they are dumping the MMU3 design compatibility with the next solution -- but that's probably 2 years out in Prusa minutes. We'll have plenty of time to speculate on that.
RE: Core One MMU3 Prototypes
OK, now I´ve conected CoreOne with MMU3. I have Voxel3D´s Coreboxx with buffered spoolholders, only my MMU3 is not inside but is screwed on the back of CoreOne - for better acces. I have HF nozzle and I´ve edited standart Prusaslicer profile ( 0,2 Structural). MMU3 is - not perfect but usefull. But it is little bit complicated in comparison with BBL AMF ( or Creality CFS and others similar systems) By my meaning Prusa will/is working on complete new version (MMU4?) which will be similar to these systems. Until that - and I think it will take some time - we must suffice with old MMU3. My plan is to change buffered spoolholders with some autorewinder spoolholders.
RE: Core One MMU3 Prototypes
Recommended (by Prusa) to install standard nozzle with MMU3 setup - not HF nozzle.
In fact, Ive replaced my HF nozzle in the core one (no MMU3) with a standard nozzle too - things just seem to run better IMO.
RE: Core One MMU3 Prototypes
Hey,
Thank you for choosing my design! The rewinders are definitely a huge upgrade. They are way easier to load, way more reliable, neat, and overall a better system. You can download them from the listing on printables.
Also, I made a YouTube video that shows in detail how the rewinders work and how to load them.
Meet COREBOXX - Smart MMU3 integration for Prusa CORE one
RE: Core One MMU3 Prototypes
Hey,
Thank you for choosing my design! The rewinders are definitely a huge upgrade. They are way easier to load, way more reliable, neat, and overall a better system. You can download them from the listing on printables.
Also, I made a YouTube video that shows in detail how the rewinders work and how to load them.
Meet COREBOXX - Smart MMU3 integration for Prusa CORE one
(actual link)
RE: Core One MMU3 Prototypes
A quick question about the boxx. My printer lives in a very humid basement and I need to store my filament as airtight as possible. I mainly use Ikea 365 boxes and was wondering how airtight the boxx is?